4-benzyl-5-trifluoromethyl-1,2-dihydro-3H-pyrazol-3-one

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑啉类
• 英文名称: 4-benzyl-5-trifluoromethyl-1,2-dihydro-3H-pyrazol-3-one
• 英文别名: 4-benzyl-1,2-dihydro-5-trifluoromethyl-3H-pyrazol-3-one；4-Benzyl-5-(trifluoromethyl)-1,2-dihydropyrazol-3-one
• 化学式: C₁₁H₉F₃N₂O
• 分子量: 242.2
• InChiKey: PUTLIQUUCVJLFT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  41.1
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  4-benzyl-5-trifluoromethyl-1,2-dihydro-3H-pyrazol-3-one 、 2,3,4,6-四乙酰氧基-alpha-D-吡喃葡萄糖溴化物 在 苄基三丁基氯化铵 、 sodium hydroxide 作用下， 以 二氯甲烷 、 水 为溶剂， 以8%的产率得到4-benzyl-3-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)-5-trifluoromethyl-1H-pyrazole
  参考文献：
  名称：

  Structure–activity relationship studies of 4-benzyl-1H-pyrazol-3-yl β-d-glucopyranoside derivatives as potent and selective sodium glucose co-transporter 1 (SGLT1) inhibitors with therapeutic activity on postprandial hyperglycemia

  摘要：

  Sodium glucose co-transporter 1 (SGLT1) plays a dominant role in the absorption of glucose in the gut and is considered a promising target in the development of treatments for postprandial hyperglycemia. A series of 4-benzyl-1H-pyrazol-3-yl beta-D-glucopyranoside derivatives have been synthesized, and its inhibitory activity toward SGLTs has been evaluated. By altering the substitution groups at the 5-position of the pyrazole ring, and every position of the phenyl ring, we studied the structure-activity relationship (SAR) profiles and identified a series of potent and selective SGLT1 inhibitors. Representative derivatives showed a dose-dependent suppressing effect on the escalation of blood glucose levels in oral mixed carbohydrate tolerance tests (OCTT) in streptozotocin-nicotinamide-induced diabetic rats (NA-STZ rats). (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2012.09.037
• 作为产物：
  描述：

  2-苄基-4,4,4-三氟-3-氧代丁酸乙酯 在 肼 作用下， 以 乙二醇二甲醚 为溶剂， 以40%的产率得到4-benzyl-5-trifluoromethyl-1,2-dihydro-3H-pyrazol-3-one
  参考文献：
  名称：

  Studies on New Acidic Azoles as Glucose-Lowering Agents in Obese, Diabetic db/db Mice

  摘要：

  Bioisosteric substitution was used as a tool to generate several new structural alternatives to the thiazolidine-2,4-dione and tetrazole heterocycles as potential antidiabetic agents. Among the initial leads that emerged from this strategy, a family of acidic azoles isoxazol-3- and -5-ones and a pyrazol-3-one, showed significant plasma glucose-lowering activity (17-42% reduction) in genetically obese, diabetic db/db mice at a dose of 100 mg/kg/day x 4. Structure-activity relationship studies determined that 5-alkyl-4-(arylmethyl)pyrazol-3-ones, which exist in solution as aromatic enol/iminol tautomers, were the most promising new class of potential antidiabetic agent (32-45% reduction at 20 mg/kg/d x 4). Included in this work are convenient syntheses for several types of acidic azoles that may find use as new acidic bioisosteres in medicinal chemistry such as the antidiabetic lead 5-(trifluoromethyl)pyrazol-3-one (hydroxy tautomer) and aza homologs of the pyrazolones, 1,2,3-triazol-5-ones (hydroxy tautomer) and 1,2,3,4-tetrazol-5-one heterocycles. log P and pK(a) data for 15 potential acidic bioisosteres, all appended to a 2-naphthalenylmethyl residue so as to maintain a similar distance between the acidic hydrogen and arene nucleus, are presented. This new data set allows comparison of a wide variety of potential acid mimetics (pK(a) 3.78-10.66; log P -0.21 to 2.76) for future drug design.

  DOI：

  10.1021/jm00004a008

文献信息

• Glucopyranosyloxypyrazole derivatives and use thereof in medicines
  申请人：Fujikura Hideki

  公开号：US20060094667A1

  公开（公告）日：2006-05-04

  The present invention provides glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R represents a hydrogen atom, a lower alkyl group or a group forming a prodrug;.one of Q and T represents a group represented by the general formula: (wherein P represents a hydrogen atom or a group forming a prodrug), while the other represents a lower alkyl group or a halo(lower alkyl) group; R 2 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halo (lower alkyl) group or a halogen atom; and with the proviso that P does not represent a hydrogen atom when R represents a hydrogen atom or a lower alkyl group, or pharmaceutically acceptable salts thereof, which exert an inhibitory activity in human SGLT2 and have an improved oral absorption, and therefore are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complications or obesity, and pharmaceutically acceptable salts thereof, and pharmaceutical uses thereof.

  本发明提供了由下式表示的葡萄糖吡唑衍生物： 其中，R表示氢原子，低级烷基或形成前药的基团；Q和T中的一个表示由下式表示的基团： （其中，P表示氢原子或形成前药的基团），而另一个表示低级烷基或卤代（低级烷基）基团；R2表示氢原子，低级烷基，低级烷氧基，低级烷基硫基，卤代（低级烷基）基团或卤素原子；但要注意，当R表示氢原子或低级烷基时，P不表示氢原子。本发明的衍生物在人体SGLT2中具有抑制活性，并具有改善口服吸收，因此可用作预防或治疗与高血糖有关的疾病，如糖尿病、糖尿病并发症或肥胖症的药物，以及其药学上可接受的盐和药物用途。
• Glucopyranosyloxypyrazole derivatives, medicinal compositions containing the same and intermediates in the production thereof
  申请人：Fujikura Hideki

  公开号：US20050261206A1

  公开（公告）日：2005-11-24

  The present invention relates to glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R 1 represents a hydrogen atom or a lower alkyl group; one of Q 1 and T 1 represents a group represented by the general formula: while the other represents a lower alkyl group or a halo(lower alkyl) group; and R 2 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halo(lower alkyl) group or a halogen atom, or pharmaceutically acceptable salts thereof, which have an inhibitory activity in human SGLT2 and are useful as agents for the prevention or treatment of diabetes, diabetic complications or obesity, and to pharmaceutical compositions comprising the same and intermediates thereof.

  本发明涉及由下式表示的葡萄糖吡唑衍生物：其中R1代表氢原子或低碳基；Q1和T1中的一个代表由下式表示的基团：另一个代表低碳基或卤代（低碳）基团；R2代表氢原子、低碳基、低烷氧基、低烷硫基、卤代（低碳）基团或卤素原子，或其药学上可接受的盐，具有对人类SGLT2的抑制活性，并且可用作预防或治疗糖尿病、糖尿病并发症或肥胖症的药物，以及包含它们和它们的中间体的制药组合物。
• Glucopyranosyloxyprazole derivatives and use thereof in medicines
  申请人：Fujikura Hideki

  公开号：US20060035847A1

  公开（公告）日：2006-02-16

  The present invention provides glucopyranosyloxypyrazole derivatives represented by the general formula: wherein R represents a hydrogen atom, a lower alkyl group or a group forming a prodrug; one of Q and T represents a group represented by the general formula: (wherein P represents a hydrogen atom or a group forming a prodrug), while the other represents a lower alkyl group or a halo(lower alkyl) group; R 2 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a halo (lower alkyl) group or a halogen atom; and with the proviso that P does not represent a hydrogen atom when R represents a hydrogen atom or a lower alkyl group, or pharmaceutically acceptable salts thereof, which exert an inhibitory activity in human SGLT2 and have an improved oral absorption, and therefore are useful as agents for the prevention or treatment of a disease associated with hyperglycemia such as diabetes, diabetic complications or obesity, and pharmaceutically acceptable salts thereof, and pharmaceutical uses thereof.

  本发明提供了由下式表示的葡萄糖吡唑基氧基吡唑衍生物： 其中R表示氢原子、低碳基或形成前药的基团；Q和T中的一个表示由下式表示的基团： （其中P表示氢原子或形成前药的基团），而另一个表示低碳基或卤代（低碳基）基团；R2表示氢原子、低碳基、低碳氧基基团、低碳硫基基团、卤代（低碳基）基团或卤素原子；但是在R表示氢原子或低碳基团时，P不表示氢原子。此类衍生物在人类SGLT2中具有抑制活性，并具有改善口服吸收，因此可用作预防或治疗与高血糖有关的疾病，如糖尿病、糖尿病并发症或肥胖症的药物，以及其医药用途的药物可接受的盐。
• GLUCOPYRANOSYLOXYPYRAZOLE DERIVATIVES AND USE THEREOF IN MEDICINES
  申请人：Kissei Pharmaceutical Co., Ltd.

  公开号：EP1354888B1

  公开（公告）日：2009-05-20
• GLUCOPYRANOSYLOXYPYRAZOLE DERIVATIVES, MEDICINAL COMPOSITIONS CONTAINING THE SAME AND INTERMEDIATES IN THE PRODUCTION THEREOF
  申请人：Kissei Pharmaceutical Co., Ltd.

  公开号：EP1213296B1

  公开（公告）日：2004-04-14